#PI0762: Coolant Leak at Water Pump - (Jul 11, 2012)
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Thread: #PI0762: Coolant Leak at Water Pump - (Jul 11, 2012)

  1. #1
    4th Gear mcg75's Avatar
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    #PI0762: Coolant Leak at Water Pump - (Jul 11, 2012)

    Models: 2011-2012 Chevrolet Cruze
    Equipped with 1.4L Turbo Engine (RPO LUJ)

    Some customers may comment on a coolant leak, low coolant reservoir level, a hot engine message or lack of heat as a result of low coolant levels.

    Coolant may be leaking from the water pump mounting bolts.
    Recommendation/Instructions

    If the water pump mounting bolts are leaking, do not attempt to tighten or put sealer on the bolts. The water pump and gasket should be replaced.
    The water pump does not come with the gasket. The water pump and the water pump gasket should be ordered separately.
    When replacing the water pump, the thermostat housing seal also needs to be replaced.
    Parts Information

    Part Number
    Description
    55579016
    PUMP, WAT
    55568033
    SEAL, W/PMP
    55579010
    THERMOSTAT, ENG COOL (Includes Seal)
    Warranty Information

    For vehicles repaired under warranty, use:
    Labor Operation
    Description
    Labor Time
    J3480
    Water Pump Replacement
    Use Published Labor Operation Time
    2013 Chevy Cruze LT RS - Black granite, 6M

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  3. #2
    2nd Gear Bohdan's Avatar
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    Now this is a new twist to the water pump problems. There mounting bolts may be leaking.
    obermd likes this.

  4. #3
    Driver's Ed
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    just had this done on my car...

  5. #4
    World Rally Champion
    70AARCUDA's Avatar
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    Notice how the "seal" is not included with the pump = DUMB!

    That's DUMB because when a new pump is installed, a new seal is always required!
    Starks8 likes this.
    2011 Chevrolet Cruze LTZ 1.4LT 6A
    2009 Pontiac Vibe 1.8L/SFI 4A
    2004 Pontiac Vibe 1.8L/MFI 4A

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  6. #5
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    Quote Originally Posted by 70AARCUDA View Post
    Notice how the "seal" is not included with the pump = DUMB!

    That's DUMB because when a new pump is installed, a new seal is always required!
    so what if its not included with it. maybe they use a different manufacturer for it. all that matters is that the bulletin says use a new one and here's the part number. there is no need for calling anything dumb...
    2012 Chevrolet Cruze LT RS Crystal Red with Red/ Black interior
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  7. #6
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    Quote Originally Posted by Kinmartin0789 View Post
    so what if its not included with it. maybe they use a different manufacturer for it. all that matters is that the bulletin says use a new one and here's the part number. there is no need for calling anything dumb...
    ...except when it takes two weeks to get Warranty repair of a leaking thermostat housing because the local stealership doesn't KNOW that the seal ISN'T included, thus making a one-day job into a 13 day job!

    ...and, that's after GM is aware of the problem and yet has NOT stocked the necessary parts needed!
    Starks8 likes this.
    2011 Chevrolet Cruze LTZ 1.4LT 6A
    2009 Pontiac Vibe 1.8L/SFI 4A
    2004 Pontiac Vibe 1.8L/MFI 4A

    1971 Dodge Charger 318 3A
    1970 Plymouth AAR 'Cuda 340/6BBL 4M
    1968 Dodge Charger 383 3A
    1967 Plymouth Barracuda Formula-S 383 4M
    1965 Plymouth Barracuda Formula-S 273 4M

  8. #7
    2nd Gear jsusanka's Avatar
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    Quote Originally Posted by mcg75 View Post
    Models: 2011-2012 Chevrolet Cruze
    Equipped with 1.4L Turbo Engine (RPO LUJ)

    Some customers may comment on a coolant leak, low coolant reservoir level, a hot engine message or lack of heat as a result of low coolant levels.

    Coolant may be leaking from the water pump mounting bolts.
    Recommendation/Instructions

    If the water pump mounting bolts are leaking, do not attempt to tighten or put sealer on the bolts. The water pump and gasket should be replaced.
    The water pump does not come with the gasket. The water pump and the water pump gasket should be ordered separately.
    When replacing the water pump, the thermostat housing seal also needs to be replaced.
    Parts Information

    Part Number Description
    55579016 PUMP, WAT
    55568033 SEAL, W/PMP
    55579010 THERMOSTAT, ENG COOL (Includes Seal)
    Warranty Information

    For vehicles repaired under warranty, use:
    Labor Operation Description Labor Time
    J3480 Water Pump Replacement Use Published Labor Operation Time
    I wonder if the coolant leak is so little they can't find it. I had my car do the dye test and they cannot find a leak but say they do notice a smell and my coolant level keeps dropping.

  9. #8
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    Been a long while since I have been on this board.
    I have owned my Cruze since October 2010, have over 42K miles on it, and now am troubled by a coolant leak.
    The dealer told me today that it was about a gallon low and I topped it off about a month ago. They went over everything and could not find a leak. They are also aware of this bulletin.
    For those that have had a low-coolant level leak fixed, what was the smoking gun? What did they finally catch?

  10. #9
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    ...there are two types of "leaks": (1) external leaks where you are physically to see the escaping coolant and (2) internal leaks where the coolant escapes someplace it wasn't intended to go, such as leaks inside the turbo or engine itself, which cannot be seen, only diagnosed by competent investigation.
    2011 Chevrolet Cruze LTZ 1.4LT 6A
    2009 Pontiac Vibe 1.8L/SFI 4A
    2004 Pontiac Vibe 1.8L/MFI 4A

    1971 Dodge Charger 318 3A
    1970 Plymouth AAR 'Cuda 340/6BBL 4M
    1968 Dodge Charger 383 3A
    1967 Plymouth Barracuda Formula-S 383 4M
    1965 Plymouth Barracuda Formula-S 273 4M

  11. #10
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    I'm moving this up to a sticky as more reports are coming in. If this becomes a TSB and someone can get that TSB number, please post it

    I'm currently in touch with Tom Read regarding these water pump issues.
    Last edited by XtremeRevolution; 11-04-2012 at 01:10 AM.
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